Telecommunications – Transmitter – Power control – power supply – or bias voltage supply
Reexamination Certificate
2006-07-24
2011-10-25
Vuong, Quochien B (Department: 2618)
Telecommunications
Transmitter
Power control, power supply, or bias voltage supply
C455S126000, C330S127000
Reexamination Certificate
active
08045939
ABSTRACT:
The present invention relates to a method for controlling an amplifier unit having at least one drive signal input connection1, at least one power supply voltage input connection2and an output connection4. The amplifier unit comprises at least one amplifier, and the method comprises the steps of: feeding each amplifier by a drive signal from said at least one drive signal input connection1, and feeding each amplifier by a power supply voltage from said at least one power supply voltage input connection, whereby said amplifier unit has defined output characteristics at the output connection4and a predetermined power supply voltage at a maximum RF output power for a RF signal. The method further comprises the steps of: operating at least one amplifier with RF output voltage characteristics to obtain a reduced shunt loss, compared to a reference shunt loss, at the output connection4. The reference shunt loss is obtained when operating each amplifier as a class B amplifier having the defined output characteristics at the output connection4and the predetermined power supply voltage at a maximum RF output power for the RF signal, and modulating the power supply voltage to each amplifier to reduce excessive voltage drop over the amplifier.
REFERENCES:
patent: 5774797 (1998-06-01), Kawano et al.
patent: 5828953 (1998-10-01), Kawase
patent: 7398064 (2008-07-01), Miyatani
patent: 7482869 (2009-01-01), Wilson
patent: 7539466 (2009-05-01), Tan et al.
Fondén Tony
Hellberg Richard
Burleigh Roger S.
Telefonaktiebolaget L M Ericsson (Publ)
Vuong Quochien B
LandOfFree
Method for controlling a linear amplifier and power... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for controlling a linear amplifier and power..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for controlling a linear amplifier and power... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4266750